It's still not clear, though, if this Xperia branch will come with all the proprietary stuff (especially Alien Dalvik) or if it will be only a "community port" like thing. There was no information from Jolla so far on this topic.

"and to offer our community a follow-up device for the Jolla C launched
last year.”

Does that mean another 1000 limited device without warranty??

I don't think so. Well I don't know about the warranty. But using standard Sony devices probably leads to an unlimited availability. Because Jolla don't have to order huge batch sizes but can get them in much smaller batches. So the risk for Jolla is dramatically lower than with Jolla C.